Antenna testing - one reflector will do

摘要

Electromagnetic waves are at the heart of our daily lives, through smartphones, computers, tablets, cars, trains and planes - none would work without them. Since its creation in 1987, The Microwave Vision Group (MVG) has developed expertise in the visualisation of electromagnetic waves, while evaluating the characteristics of antennas, and helping speed up the development of products using microwave frequencies. A compact antenna test range (CATR) is a facility used to provide convenient testing of antenna systems at frequencies where obtaining far-field spacing to the antenna under test (AUT) would not be feasible using traditional free-space methods. This is typically for microwave and millimetre-wave frequencies where the far-field distance is large, such as with high-gain reflector antennas. It was invented by Richard C Johnson at the Georgia Tech Research Institute.